Version 0.6.2:
- use GNU Autotools (Christophe Nowicki)
- fixed wildcard support in server certificate's Common Name field

Version 0.6.1:
- improved certificate check/verification with OpenSSL
- code cleanups

Version 0.6.0:
- Added sanity checks of server certificate when using TLS
- Strict server certificate verification with tls_trust_file command
- Possibility to send client certificate if requested (tls_key_file and  
  tls_cert_file commands)
- Optional support for GnuTLS instead of OpenSSL
- Optional support for GSASL (adds DIGEST-MD5 and NTLM authentication methods)
- Arguments in the configuration file may now contain blanks
- Removed the possibility to choose the TLS version with the tls command
- Proper recognition of server capabilities (EHLO response)
